1// SPDX-License-Identifier: GPL-2.0
2/*
3 * QNX6 file system, Linux implementation.
4 *
5 * Version : 1.0.0
6 *
7 * History :
8 *
9 * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release.
10 * 16-02-2012 pagemap extension by Al Viro
11 *
12 */
13
14#include "qnx6.h"
15
16struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry,
17				unsigned int flags)
18{
19	unsigned ino;
20	struct page *page;
21	struct inode *foundinode = NULL;
22	const char *name = dentry->d_name.name;
23	int len = dentry->d_name.len;
24
25	if (len > QNX6_LONG_NAME_MAX)
26		return ERR_PTR(-ENAMETOOLONG);
27
28	ino = qnx6_find_entry(len, dir, name, &page);
29	if (ino) {
30		foundinode = qnx6_iget(dir->i_sb, ino);
31		qnx6_put_page(page);
32		if (IS_ERR(foundinode))
33			pr_debug("lookup->iget ->  error %ld\n",
34				 PTR_ERR(foundinode));
35	} else {
36		pr_debug("%s(): not found %s\n", __func__, name);
37	}
38	return d_splice_alias(foundinode, dentry);
39}
40